Badr or Badar bin Saif (died 1806) was a member of the Al Said dynasty of Oman.
[2] While Sultan was away on a pilgrimage to Mecca early in 1803, Badr bin Saif made an attempt to get control of Fort Al Jalali, a key stronghold guarding Muscat harbor.
Badr bin Saif, based in Muscat, gained the support of the Wahhabi leader, Su'ud, in this contest.
Early in 1805 he joined forces with his younger brother Mohammed and marched down the coast to Muttrah, which he took with little opposition.
Qais refused since he had growing support and was confident of success, and continued to besiege Muscat.
Qais agree to lift the siege in return for being given Al Khaburah and part of the Batinah.
In 1805 they appealed for protection from Badr bin Saif, now the effective ruler of Muscat.
The Al Kalifah then asked the British Resident in Muscat, Captain David Seton, if the British would provide one or two gunboats to help them and Badr bin Saif keep the Wahhabis under control in the Persian Gulf.
[9] At one point the Wahhabi leader called on Badr to attack India as part of the Jihad.
The same year Badr bin Saif began to make moves to increase his power.